130990040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{76157}}^1$

素因数の和:76211

約数の個数: 32

約数和(自身を含む): 301585680

約数和(自身を除く): 170595640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 76157, 152314, 304628, 380785, 609256, 761570, 1523140, 3046280, 3274751, 6549502, 13099004, 16373755, 26198008, 32747510, 65495020, 130990040]

約数ペア:

[(1, 130990040), (2, 65495020), (4, 32747510), (5, 26198008), (8, 16373755), (10, 13099004), (20, 6549502), (40, 3274751), (43, 3046280), (86, 1523140), (172, 761570), (215, 609256), (344, 380785), (430, 304628), (860, 152314), (1720, 76157)]